Paper number 1353

PREPARATION OF GF/PVC COMPOSITES USING AQUEOUS SUSPENSION IMPREGNATION TECHNIQUE: THE INTERFACIAL ISSUES

Jiarui XU, Changhai YI, Xiao WANG and Hanmin ZENG

Materials Science Institute, PC and FM Lab, Zhongshan University, Guangzhou 510275, P. R. China

Summary

Following our previous studies of using the aqueous suspension impregnation technique to prepare fiber reinforced polyvinyl chloride composites, the main attention of this work was given to the interfacial issues for the suspension technique. Formulas which would form different interfacial layers were designed and possible interfaces, such as fiber/coupling agent, coupling agent/binder, coupling agent/resin and binder/resin, were simulated to evaluate the formation, adhesion and interaction of the interfaces. The nature of the interfacial interactions were investigated by FTIR and electronic probe analysis. The experimental results showed that there existed not only physical interactions but also chemical reactions at the interfaces. Chemical bonding of suitable interfacial components was found to be necessary to obtain good interfacial adhesion between fibers and matrix.

Keywords

GF/PVC composites, aqueous suspension impregnation technique, interfacial interaction, FTIR, electronic probe analysis.